================ @@ -0,0 +1,210 @@ +//===-- DWARFDIETest.cpp ----------------------------------------------=---===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include "Plugins/SymbolFile/DWARF/DWARFDIE.h" +#include "Plugins/SymbolFile/DWARF/DWARFDebugInfo.h" +#include "Plugins/SymbolFile/DWARF/DWARFDeclContext.h" +#include "Plugins/SymbolFile/DWARF/DebugNamesDWARFIndex.h" +#include "TestingSupport/Symbol/YAMLModuleTester.h" +#include "llvm/ADT/STLExtras.h" +#include "gmock/gmock.h" +#include "gtest/gtest.h" + +using namespace lldb; +using namespace lldb_private; +using namespace lldb_private::plugin::dwarf; +using StringRef = llvm::StringRef; + +void check_num_matches(DebugNamesDWARFIndex &index, int expected_num_matches, + llvm::ArrayRef<DWARFDeclContext::Entry> ctx_entries) { + DWARFDeclContext ctx(ctx_entries); + int num_matches = 0; + auto increment_matches = [&](DWARFDIE die) { + num_matches++; + return true; + }; + + index.GetFullyQualifiedType(ctx, increment_matches); + ASSERT_EQ(num_matches, expected_num_matches); +} + +TEST(DWARFDebugNamesIndexTest, FullyQualifiedQueryWithIDXParent) { + const char *yamldata = R"( +--- !ELF +FileHeader: + Class: ELFCLASS64 + Data: ELFDATA2LSB + Type: ET_EXEC + Machine: EM_386 +DWARF: + debug_str: + - '1' + - '2' + - '3' + debug_abbrev: + - Table: + # We intentionally don't nest types in debug_info: if the nesting is not + # inferred from debug_names, we want the test to fail. + - Code: 0x1 + Tag: DW_TAG_compile_unit + Children: DW_CHILDREN_yes + - Code: 0x2 + Tag: DW_TAG_class_type + Children: DW_CHILDREN_no + Attributes: + - Attribute: DW_AT_name + Form: DW_FORM_strp + debug_info: + - Version: 4 + AddrSize: 8 + Entries: + - AbbrCode: 0x1 + - AbbrCode: 0x2 + Values: + - Value: 0x0 # Name "1" + - AbbrCode: 0x2 + Values: + - Value: 0x2 # Name "2" + - AbbrCode: 0x2 + Values: + - Value: 0x4 # Name "3" + - AbbrCode: 0x0 + debug_names: + Abbreviations: + - Code: 0x11 + Tag: DW_TAG_class_type + Indices: + - Idx: DW_IDX_parent + Form: DW_FORM_flag_present + - Idx: DW_IDX_die_offset + Form: DW_FORM_ref4 + - Code: 0x22 + Tag: DW_TAG_class_type + Indices: + - Idx: DW_IDX_parent + Form: DW_FORM_ref4 + - Idx: DW_IDX_die_offset + Form: DW_FORM_ref4 + Entries: + - Name: 0x0 # strp to Name1 + Code: 0x11 + Values: + - 0xc # Die offset to entry named "1" + - Name: 0x2 # strp to Name2 + Code: 0x22 + Values: + - 0x0 # Parent = First entry ("1") + - 0x11 # Die offset to entry named "1:2" + - Name: 0x4 # strp to Name3 + Code: 0x22 + Values: + - 0x6 # Parent = Second entry ("1::2") + - 0x16 # Die offset to entry named "1::2::3" + - Name: 0x4 # strp to Name3 + Code: 0x11 + Values: + - 0x16 # Die offset to entry named "3" +)"; + + YAMLModuleTester t(yamldata); + auto *symbol_file = + llvm::cast<SymbolFileDWARF>(t.GetModule()->GetSymbolFile()); + auto *index = static_cast<DebugNamesDWARFIndex *>(symbol_file->getIndex()); + ASSERT_NE(index, nullptr); + + auto make_entry = [](const char *c) { + return DWARFDeclContext::Entry(dwarf::DW_TAG_class_type, c); + }; + check_num_matches(*index, 1, {make_entry("1")}); + check_num_matches(*index, 1, {make_entry("2"), make_entry("1")}); + check_num_matches(*index, 1, + {make_entry("3"), make_entry("2"), make_entry("1")}); + check_num_matches(*index, 0, {make_entry("2")}); + check_num_matches(*index, 1, {make_entry("3")}); +} + +TEST(DWARFDebugNamesIndexTest, FullyQualifiedQueryWithoutIDXParent) { + const char *yamldata = R"( +--- !ELF +FileHeader: + Class: ELFCLASS64 + Data: ELFDATA2LSB + Type: ET_EXEC + Machine: EM_386 +DWARF: + debug_str: + - '1' + - '2' + debug_abbrev: + - Table: + - Code: 0x1 + Tag: DW_TAG_compile_unit + Children: DW_CHILDREN_yes + - Code: 0x2 + Tag: DW_TAG_class_type + Children: DW_CHILDREN_yes + Attributes: + - Attribute: DW_AT_name + Form: DW_FORM_strp + - Code: 0x3 + Tag: DW_TAG_class_type + Children: DW_CHILDREN_no + Attributes: + - Attribute: DW_AT_name + Form: DW_FORM_strp + debug_info: + - Version: 4 + AddrSize: 8 + Entries: + - AbbrCode: 0x1 + - AbbrCode: 0x2 + Values: + - Value: 0x0 # Name "1" + - AbbrCode: 0x3 + Values: + - Value: 0x2 # Name "2" + - AbbrCode: 0x0 + - AbbrCode: 0x3 + Values: + - Value: 0x2 # Name "2" + - AbbrCode: 0x0 + debug_names: + Abbreviations: + - Code: 0x1 + Tag: DW_TAG_class_type + Indices: + - Idx: DW_IDX_die_offset + Form: DW_FORM_ref4 + Entries: + - Name: 0x0 # strp to Name1 + Code: 0x1 + Values: + - 0xc # Die offset to entry named "1" + - Name: 0x2 # strp to Name2 + Code: 0x1 + Values: + - 0x11 # Die offset to entry named "1::2" + - Name: 0x2 # strp to Name2 + Code: 0x1 + Values: + - 0x17 # Die offset to entry named "2" +)"; + + YAMLModuleTester t(yamldata); + auto *symbol_file = + llvm::cast<SymbolFileDWARF>(t.GetModule()->GetSymbolFile()); + auto *index = static_cast<DebugNamesDWARFIndex *>(symbol_file->getIndex()); + ASSERT_NE(index, nullptr); + + auto make_entry = [](const char *c) { + return DWARFDeclContext::Entry(dwarf::DW_TAG_class_type, c); + }; ---------------- dwblaikie wrote:
Since it's written twice, might be OK to have this as a file-static helper function rather than two separate copies as lambdas? https://github.com/llvm/llvm-project/pull/79932 _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
